Marketplace Coverage – family of 3 needing coverage for 2, now with a working minor teen – help!

Hoping to gain some insight, please. I did search for answers, but did not find anything specific to my situation.

My husband has coverage through his job, which doesn’t offer family plans, so we’ve used the Marketplace to cover me and our teen for the past couple of years. This year, our 17 year old enlisted in the FL National Guard, so there’s technically a government job now in play. What I need to figure out is if this income needs to be reported on the marketplace application? The monthly pay is around $200 for each weekend served, but the weekend service pay was changed to active duty pay over the summer for approximately 12 weeks of bootcamp, so the earnings were substantially higher. I understand there is an income threshold that must be met, but don’t understand if/how that applies to minors with jobs that are still dependents? That total income won’t be anywhere near the ~13K threshold, but I’m still quite unsure of what needs to be done. Of course I’m at a standstill with our application at this point, because I want to make sure I do everything properly.

Thanks in advance for any insight!